摘要
利用声卡DSP技术和LabVIEW多线程技术,提出了一种基于声卡的数据采集与分析的廉价设计方案,具有实现简单、界面友好、性能稳定可靠等优点。在LabVIEW环境中实现了音频信号的采集分析及数据存盘重载。PC上配置多块声卡即可构成实时、高信噪比的多通道数据采集系统。可以推广到语音识别、环境噪声监测和实验室测量等多种领域,应用前景广阔。
Based on DSP technology and LabVIEW multithreading, this paper brings forward a low price solution of sound card based data acquisition and analysis system, with its advantages of easy implementation, friendly interface and steady performance. In the range of voice frequency, data saving and overloading is successful in LabVIEW. If more sound cards configured in a PC, it＇s feasible to build a multi-channel real-time DAQ system with high SNR. With broad application prospect, this solution can be extended to the field of speech recognition, ambient noise monitoring and laboratory measurement etc.
出处
《微计算机信息》
北大核心
2005年第09S期108-110,共3页
Control & Automation
